Combined ultrasound methods of concrete testing
Author(s)
Bibliographic Information
Combined ultrasound methods of concrete testing
（Developments in civil engineering, 34）
Elsevier, 1990
- Other Title
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Kombinované ultrazvukové metódy skúšania betónu
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Note
Bibliographical references: p. 336-340
Includes index
Description and Table of Contents
Description
Non-destructive methods for materials testing are being increasingly used in testing concrete structures. In the construction industry, their use has resulted in improvements in the quality of concrete products and structures. It is no longer possible to rely solely on the traditional methods of quality control, and progressive, non-destructive methods must be applied in modern quality-control practice. This new approach in the field of non-destructive testing of concrete structures requires that new parameters be introduced for their verification and evaluation with regard to concrete strength, and for the solution of problems related to the use of combined multiparameter non-destructive methods. The present work provides a comprehensive overview on the solutions available for problems encountered in the non-destructive testing of concrete. Including the use of original combined ultrasonic-pulse methods developed by the author for testing concrete strength. Special attention is given to specific issues of testing in concrete structures and members by means of the combined and one-parameter methods and to the interpretation of the measurement results.
Table of Contents
1. Some characteristics of ultrasonic pulses in concrete. 2. Methods for measuring ultrasonic characteristics in concrete. 3. Methods for non-destructive determination of the elasticity characteristics of concrete by means of ultrasonic parameters. 4. Non-destructive determination of concrete strength properties. 5. The problem of the determination of the strength of concrete by means of combined non-destructive methods. 6. The combined ultrasonic methods for determining concrete strength based on the pulse velocities of longitudinal and transverse ultrasonic waves and on the dynamic moduli of elasticity. 7. The combined method for determination of the compressive strength of concrete from the pulse velocity of longitudinal ultrasonic waves and the density. 8. The combined method for determination of the strength of concrete by means of elastic and non-elastic characteristics of ultrasonic pulses. 9. A combined method for determining concrete strength using the pulse velocity of longitudinal ultrasonic waves and the value measured by an N-type Schmidt hammer. 10. Determination of the elasticity characteristics of concrete using the ultrasonic-pulse method. 11. Determination of the static moduli of elasticity and deformation in a structure, using the ultrasonic-pulse method. 12. Some applications of ultrasonic defectoscopy. 13. Some questions concerning the measurement methods used for concrete structures and members, and interpretation of the measurement results. 14. Testing the homogeneity of concrete in a structure or member by means of non-destructive methods. 15. Non-destructive methods for the testing of cellular concrete. Conclusions. References. Subject Index.
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